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2609f635a2
Avoid pointer type value compared with 0 to make code clear. Reported by coccicheck: tools/testing/selftests/bpf/progs/map_ptr_kern.c:370:21-22: WARNING comparing pointer to 0 tools/testing/selftests/bpf/progs/map_ptr_kern.c:397:21-22: WARNING comparing pointer to 0 Signed-off-by: Haowen Bai <baihaowen@meizu.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/1648605588-19269-1-git-send-email-baihaowen@meizu.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.